US2935308A - Rotary paving cutter - Google Patents

Rotary paving cutter Download PDF

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US2935308A
US2935308A US818804A US81880459A US2935308A US 2935308 A US2935308 A US 2935308A US 818804 A US818804 A US 818804A US 81880459 A US81880459 A US 81880459A US 2935308 A US2935308 A US 2935308A
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cutter
legs
upright
rotary
clevis
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US818804A
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Andrew K Zorn
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
    • E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
    • E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
    • E01C23/0906—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges
    • E01C23/0913—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with non-powered tools, e.g. trailed router blade
    • E01C23/092—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating cuts, grooves, recesses or, excluding forming, cracks, e.g. cleaning by sand-blasting or air-jet ; for trimming paving edges with non-powered tools, e.g. trailed router blade rotary, e.g. edge trimmer disc

Definitions

  • the present invention is directed to a rotary paving cutter, and more particularly to a rotary paving cutter for scoring and/or cutting asphalt or concrete paving or the like.
  • This invention has as an object the provision of a novel rotary paving cutter.
  • This invention has as another object the provision of a paving cutter which may be automatically operated.
  • This invention has as a still further object the provision of a paving cutter of relatively low cost construction which possesses a great degree of durability and strength.
  • Figure 1 reveals the rotary paving cutter of the present invention shown in end elevation.
  • Figure 2 is a side elevational view of the rotary paving cutter of the present invention secured to road equipment.
  • Figure 3 is a sectional view taken along line 3-3 of Figure 1.
  • the present invention comprises the rotary paving cutter designated generally as 10, which rotary paving cutter is operatively engaged with road equipment 12.
  • Road equipment 12 which is shown in phantom line in Figure 2, may comprise any conventional power operated road vehicle, such as a tractor or the like.
  • the rotary paving cutter 10 comprises the upright 14 whose front edges 16 are notched at 18, which notches 18 are engaged with a mating clamping element in the road equipment 12.
  • the upright 14 may comprise a forged steel frame member which is lap welded to the rod 20 of the clevis 21.
  • the clevis 21 comprises the legs 22 and 22 which are welded at 24 to the rod 20.
  • the legs 22 are provided with mating similar aligned holes 26 through which the bolt 28 may be passed.
  • the bolt 28 is threaded at its end remote from its head, and carries the nut 30 at such threaded end.
  • the cutter wheel 32 is rotatably carried on the bolt 28 intermediate the legs 22 and 22 of clevis 21.
  • the cutter wheel comprises a disc which is beveled at 32 to provide the sharp edge 36 and which is welded to the Patented May 3, 1960 by the weld metal 40.
  • the bushing 42 is force-fitted into the hub 38
  • the journal 44 which is force-fitted onto the axle of the bolt 28 is juxtaposed to the inside surface of the bushing 42.
  • a lubricant tap 46 may be provided on the exterior of the hub 38, which lubricant tap 46 is in communica tion through the aligned openings 48 and 50 in the hub 38 and bushing 42 with the clearance intermediate the bushing 42 and. the journal 44. This enables pressure grease lubrication to be furnished intermediate the bushing 42 and the journal 44.
  • the rotary paving cutter of the present invention may be dragged or pushed along the paving surface which is being cut.
  • the cutter should have sulficient mass of its own to effect a cutting action upon the pavement over which it is being moved.
  • the rotary paving cutter may be downwardly urged by. the road equipment 12.
  • a rotary paving cutter comprising a rigid metal upright adapted atone end to be attached to a road vehicle, a clevis comprising a rigid rod having a pair of spaced apart legs secured to and extending from one end thereof, the free end portions of said legs being substantially parallel, said clevis being rigidly secured to the other end of the upright with the rod in side-by-side, overlapping relation with the upright and the upper end of one of the legs abutting the end of the upright, and a cutting wheel rotatably supported between the free ends of the clevis legs.
  • a rotary paving cutter comprising arigid metal upright adapted at one end to be attached to a road vehicle, a clevis comprising a rigid rod having a pair of spaced apart legs welded to one end thereof and extending therefrom, the free end portions of said legs being substantially parallel, said rod being in side-by-side, overlapping relation with the other end of said upright and welded thereto, the upper end of one of the legs abutting against the end of the upright, and a cutting wheel rotatably supported between the free ends of the clevis legs.
  • a rotary paving cutter comprising a rigid metal upright adapted at one end to be attached to a road vehicle, a clevis comprising a rigid rod having a pair of spaced apart legs welded to one end thereof and extending therefrom, the free end portions of said legs being substantially parallel, said rod being in side-by-side, overlapping relation with the other end of said upright and welded thereto, with the upper end of one of the legs abutting against the end of the upright, a bolt extending through aligned holes in the free ends of the clevis legs, said bolt having a head on one end abutting the outer surface of one of the legs and having its other end threaded, a nut threaded on the threaded end of the bolt and abutting against the outer surface of the other leg, a journal force-fitted on the bolt between the legs, a hub rotatably mounted on the journal, and a cutter wheel secured to the outer surface of the hub, said cutter wheel comprising a disc having a beveled peripher
  • a rotary paving cutter comprising a rigid metal upright having a plurality of spaced notches in the front edge thereof adjacent of its ends for engaging with means for clamping the upright to a road vehicle, a clevis comprising a rigid rod having a pair of spaced apart legs Welded to one end thereof and extending therefrom, the free end portions of said legs being substantially parallel, said rod being in side-by-side, overlappingrelation with the other end of said upright and welded thereto, with the upper end of one of the legs abutting against the end of the upright, a bolt extending through aligned holes in the free ends of the clevis legs, said bolt having a head on one end abutting the outer surface of one of the legs and having its other end threaded, a nut threaded on the I threaded end of the bolt and abutting against the outer References Cited in the file of this patent UNITED STATES PATENTS 2,890,872 Hall June 16,?9 59

Description

y 1960 A. K. ZORN 2,935,308
ROTARY PAVING CUTTER Filed June 8, 1959 IN VEN TOR. A/i/fiflfW 2024/ ATTOX/VE nite Sttes Patent ROTARY PAVING CUTTER 7 Andrew K. Zorn, Levittown, Pa.
Application June 8, 1959, Serial No. 818,804
4 Claims. (Cl. 262-20) The present invention is directed to a rotary paving cutter, and more particularly to a rotary paving cutter for scoring and/or cutting asphalt or concrete paving or the like.
There has been a long felt need for a satisfactory tool for cutting precise boundaries about an area of faulty pavement. For example, in the patching of roads and highways, it is necessary to define an area which is to be removed and replaced. At the present time crude techniques and apparatus are conventionally utilized for cutting pavements and roadbeds, such as impact tools and hammers.
This invention has as an object the provision of a novel rotary paving cutter.
This invention has as another object the provision of a paving cutter which may be automatically operated.
This invention has as a still further object the provision of a paving cutter of relatively low cost construction which possesses a great degree of durability and strength.
Other objects will appear hereinafter.
For the purpose of illustrating the invention there is shown in the drawings a form which is presently preferred; it being understood, however, that this invention is not limited to the precise arrangements and instrumentalities shown.
Referring to the drawings wherein like reference characters refer to like parts:
Figure 1 reveals the rotary paving cutter of the present invention shown in end elevation.
Figure 2 is a side elevational view of the rotary paving cutter of the present invention secured to road equipment.
Figure 3 is a sectional view taken along line 3-3 of Figure 1.
Referring to the drawings, the present invention comprises the rotary paving cutter designated generally as 10, which rotary paving cutter is operatively engaged with road equipment 12.
Road equipment 12, which is shown in phantom line in Figure 2, may comprise any conventional power operated road vehicle, such as a tractor or the like.
A Wide variety of means may be utilized for securing the rotary paving cutter to the road equipment 12. In the illustrated embodiment the rotary paving cutter 10 comprises the upright 14 whose front edges 16 are notched at 18, which notches 18 are engaged with a mating clamping element in the road equipment 12.
The upright 14 may comprise a forged steel frame member which is lap welded to the rod 20 of the clevis 21. The clevis 21 comprises the legs 22 and 22 which are welded at 24 to the rod 20.
The legs 22 are provided with mating similar aligned holes 26 through which the bolt 28 may be passed. The bolt 28 is threaded at its end remote from its head, and carries the nut 30 at such threaded end.
The cutter wheel 32 is rotatably carried on the bolt 28 intermediate the legs 22 and 22 of clevis 21. The cutter wheel comprises a disc which is beveled at 32 to provide the sharp edge 36 and which is welded to the Patented May 3, 1960 by the weld metal 40.
The bushing 42 is force-fitted into the hub 38 The journal 44 which is force-fitted onto the axle of the bolt 28 is juxtaposed to the inside surface of the bushing 42.
A lubricant tap 46 may be provided on the exterior of the hub 38, which lubricant tap 46 is in communica tion through the aligned openings 48 and 50 in the hub 38 and bushing 42 with the clearance intermediate the bushing 42 and. the journal 44. This enables pressure grease lubrication to be furnished intermediate the bushing 42 and the journal 44.
The rotary paving cutter of the present invention may be dragged or pushed along the paving surface which is being cut. Preferably, the cutter should have sulficient mass of its own to effect a cutting action upon the pavement over which it is being moved. However, if desired, the rotary paving cutter may be downwardly urged by. the road equipment 12.
The side-by-side arrangement of the upright 14 and the rod 20, with the end of the upright 14 being abutted to one of the legs 22 of the clevis 21 permits a high degree of rigidity to be achieved by the rotary paving cutter of the present invention.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof and, accordingly, reference should be made to the appended claims, rather than to the foregoing specification as indicating the scope of the invention.
I claim:
1. A rotary paving cutter comprising a rigid metal upright adapted atone end to be attached to a road vehicle, a clevis comprising a rigid rod having a pair of spaced apart legs secured to and extending from one end thereof, the free end portions of said legs being substantially parallel, said clevis being rigidly secured to the other end of the upright with the rod in side-by-side, overlapping relation with the upright and the upper end of one of the legs abutting the end of the upright, and a cutting wheel rotatably supported between the free ends of the clevis legs.
2. A rotary paving cutter comprising arigid metal upright adapted at one end to be attached to a road vehicle, a clevis comprising a rigid rod having a pair of spaced apart legs welded to one end thereof and extending therefrom, the free end portions of said legs being substantially parallel, said rod being in side-by-side, overlapping relation with the other end of said upright and welded thereto, the upper end of one of the legs abutting against the end of the upright, and a cutting wheel rotatably supported between the free ends of the clevis legs.
3. A rotary paving cutter comprising a rigid metal upright adapted at one end to be attached to a road vehicle, a clevis comprising a rigid rod having a pair of spaced apart legs welded to one end thereof and extending therefrom, the free end portions of said legs being substantially parallel, said rod being in side-by-side, overlapping relation with the other end of said upright and welded thereto, with the upper end of one of the legs abutting against the end of the upright, a bolt extending through aligned holes in the free ends of the clevis legs, said bolt having a head on one end abutting the outer surface of one of the legs and having its other end threaded, a nut threaded on the threaded end of the bolt and abutting against the outer surface of the other leg, a journal force-fitted on the bolt between the legs, a hub rotatably mounted on the journal, and a cutter wheel secured to the outer surface of the hub, said cutter wheel comprising a disc having a beveled periphery providing a sharp cutting edge.
4. A rotary paving cutter comprising a rigid metal upright having a plurality of spaced notches in the front edge thereof adjacent of its ends for engaging with means for clamping the upright to a road vehicle, a clevis comprising a rigid rod having a pair of spaced apart legs Welded to one end thereof and extending therefrom, the free end portions of said legs being substantially parallel, said rod being in side-by-side, overlappingrelation with the other end of said upright and welded thereto, with the upper end of one of the legs abutting against the end of the upright, a bolt extending through aligned holes in the free ends of the clevis legs, said bolt having a head on one end abutting the outer surface of one of the legs and having its other end threaded, a nut threaded on the I threaded end of the bolt and abutting against the outer References Cited in the file of this patent UNITED STATES PATENTS 2,890,872 Hall June 16,?9 59
US818804A 1959-06-08 1959-06-08 Rotary paving cutter Expired - Lifetime US2935308A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061291A (en) * 1960-08-09 1962-10-30 Jones John Wayne Pavement cutter
US3140898A (en) * 1961-07-12 1964-07-14 Edgar A Rogers Mold board asphalt cutter wheel assembly
DE1175261B (en) * 1962-03-16 1964-08-06 Berthold Wurmbach Edge cutting machine for bituminous road surfaces
US3269775A (en) * 1963-06-06 1966-08-30 Concut Inc Machine for cutting grooves of constant depth in pavement
US3393014A (en) * 1965-07-30 1968-07-16 Leonhard Ascher Jr. Attachment for an earth-moving machine
WO1981001023A1 (en) * 1979-10-02 1981-04-16 Wohler W Process for opening a road coating and device for implementing such process
US9828742B2 (en) 2014-01-31 2017-11-28 Leroy G. Hagenbuch Cutter assembly with freewheeling cutting elements
US10352163B2 (en) 2014-01-31 2019-07-16 Leroy G. Hagenbuch Cutter assembly with freewheeling cutting elements

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890872A (en) * 1956-11-19 1959-06-16 Hall Charles Cecil Asphalt cutter operating under the weight of the machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2890872A (en) * 1956-11-19 1959-06-16 Hall Charles Cecil Asphalt cutter operating under the weight of the machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3061291A (en) * 1960-08-09 1962-10-30 Jones John Wayne Pavement cutter
US3140898A (en) * 1961-07-12 1964-07-14 Edgar A Rogers Mold board asphalt cutter wheel assembly
DE1175261B (en) * 1962-03-16 1964-08-06 Berthold Wurmbach Edge cutting machine for bituminous road surfaces
US3269775A (en) * 1963-06-06 1966-08-30 Concut Inc Machine for cutting grooves of constant depth in pavement
US3393014A (en) * 1965-07-30 1968-07-16 Leonhard Ascher Jr. Attachment for an earth-moving machine
WO1981001023A1 (en) * 1979-10-02 1981-04-16 Wohler W Process for opening a road coating and device for implementing such process
US9828742B2 (en) 2014-01-31 2017-11-28 Leroy G. Hagenbuch Cutter assembly with freewheeling cutting elements
US10352163B2 (en) 2014-01-31 2019-07-16 Leroy G. Hagenbuch Cutter assembly with freewheeling cutting elements

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